293 (number)
293 is the natural number following 292 and preceding 294.
In mathematics
293 is:- a prime number,
- a Pythagorean prime,
- a Sophie Germain prime
- a Chen prime
- strictly trivially polygonal
- equivalent to the sum of the first three tetradic primes. Tetradic numbers are numbers that are the same if written backwards, flipped upside-down, or mirrored upside-down and tetradic primes are tetradic numbers that are also prime. It is the sum of 11 + 101 + 181.
- the sum of perfect cubes 23+23+33+53+53